Dystus puberulus Stål, 1862

Weiler, L., Barão, K. R., Cassis, G. & Grazia, J., 2016, Morphology of the external scent efferent system of Neotropical shield bugs (Hemiptera: Scutelleridae: Pachycorinae), Zoomorphology 136, pp. 1-16 : 8

Dystus puberulus Stål

Ostioleinthemiddleof metapleuron ( Fig. 11a ); ostiole elliptic, oriented posterolaterally, visible in lateral view; lateral and posterior margins of ostiolar plate elevated; peritreme spout-shaped, directed anterolaterally ( Fig. 11b ), median furrow obsolete; peritremal surface reticulate, with elevated ridges ( Fig. 11c ). Evaporatoriumwelldevelopedon meso- and metapleuron; on metapleuron, evaporatorium completely covering ostiolar plate and reaching between coxal cavities, outer marginof metapleural evaporatorium straight; on mesopleuron, well developed on mesepimeron; evaporatorium punctate ( Fig. 11d ) and bearing setae ( Fig. 11e ); mushroom bodies irregular, alveoli with several trabeculae. Metathoracic spiracle wide; processes of the filter system of regular diameter, processes spiny ( Fig. 11f ).

Figures

Fig. 11 External scent efferent system of Dystus puberulus. a Meso- and metapleuron. b Peritreme. c Peritremal surface. d, e Details of evaporatorium. f Spiracular filter system. Bars a 200 µm; b, e 20 µm; c, d, f 10 µm